CA1075166A - Sorption of weak organic acids from water by polyurethane - Google Patents
Sorption of weak organic acids from water by polyurethaneInfo
- Publication number
- CA1075166A CA1075166A CA231,051A CA231051A CA1075166A CA 1075166 A CA1075166 A CA 1075166A CA 231051 A CA231051 A CA 231051A CA 1075166 A CA1075166 A CA 1075166A
- Authority
- CA
- Canada
- Prior art keywords
- acidic
- acidic substance
- granules
- absorbate
- resin
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims description 27
- 239000004814 polyurethane Substances 0.000 title abstract description 40
- 229920002635 polyurethane Polymers 0.000 title abstract description 34
- 238000001179 sorption measurement Methods 0.000 title description 6
- 150000007524 organic acids Chemical class 0.000 title description 2
- 235000005985 organic acids Nutrition 0.000 title description 2
- 239000008187 granular material Substances 0.000 claims abstract description 34
- 230000002378 acidificating effect Effects 0.000 claims abstract description 33
- 239000000126 substance Substances 0.000 claims abstract description 26
- 239000007864 aqueous solution Substances 0.000 claims abstract description 8
- 238000000034 method Methods 0.000 claims description 46
- 230000009102 absorption Effects 0.000 claims description 45
- 238000010521 absorption reaction Methods 0.000 claims description 45
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 claims description 23
- 239000002253 acid Substances 0.000 claims description 20
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 18
- 239000000463 material Substances 0.000 claims description 17
- 150000002989 phenols Chemical class 0.000 claims description 12
- 239000000243 solution Substances 0.000 claims description 11
- 239000002250 absorbent Substances 0.000 claims description 9
- 230000002745 absorbent Effects 0.000 claims description 9
- 229920005989 resin Polymers 0.000 claims description 9
- 239000011347 resin Substances 0.000 claims description 9
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical group OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 6
- 150000001735 carboxylic acids Chemical class 0.000 claims description 6
- 239000002245 particle Substances 0.000 claims description 6
- JWAZRIHNYRIHIV-UHFFFAOYSA-N 2-naphthol Chemical group C1=CC=CC2=CC(O)=CC=C21 JWAZRIHNYRIHIV-UHFFFAOYSA-N 0.000 claims description 4
- 229920005749 polyurethane resin Polymers 0.000 claims description 4
- QTWJRLJHJPIABL-UHFFFAOYSA-N 2-methylphenol;3-methylphenol;4-methylphenol Chemical compound CC1=CC=C(O)C=C1.CC1=CC=CC(O)=C1.CC1=CC=CC=C1O QTWJRLJHJPIABL-UHFFFAOYSA-N 0.000 claims description 3
- WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid Chemical compound OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 claims description 3
- 229950011260 betanaphthol Drugs 0.000 claims description 2
- 239000002904 solvent Substances 0.000 claims description 2
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 claims 2
- 239000005631 2,4-Dichlorophenoxyacetic acid Substances 0.000 claims 1
- HXKWSTRRCHTUEC-UHFFFAOYSA-N 2,4-Dichlorophenoxyaceticacid Chemical group OC(=O)C(Cl)OC1=CC=C(Cl)C=C1 HXKWSTRRCHTUEC-UHFFFAOYSA-N 0.000 claims 1
- 229930003836 cresol Natural products 0.000 claims 1
- 239000003495 polar organic solvent Substances 0.000 claims 1
- 125000003367 polycyclic group Chemical group 0.000 claims 1
- 230000003442 weekly effect Effects 0.000 claims 1
- 238000000926 separation method Methods 0.000 abstract description 4
- 238000011084 recovery Methods 0.000 abstract description 3
- 230000008569 process Effects 0.000 description 16
- 239000006260 foam Substances 0.000 description 10
- 150000007513 acids Chemical class 0.000 description 8
- 235000013824 polyphenols Nutrition 0.000 description 7
- HFZWRUODUSTPEG-UHFFFAOYSA-N 2,4-dichlorophenol Chemical compound OC1=CC=C(Cl)C=C1Cl HFZWRUODUSTPEG-UHFFFAOYSA-N 0.000 description 6
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 6
- 239000000203 mixture Substances 0.000 description 6
- 239000011496 polyurethane foam Substances 0.000 description 6
- 229920005830 Polyurethane Foam Polymers 0.000 description 5
- 229940022682 acetone Drugs 0.000 description 5
- 150000002500 ions Chemical class 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 4
- 230000007423 decrease Effects 0.000 description 4
- RLSSMJSEOOYNOY-UHFFFAOYSA-N m-cresol Chemical compound CC1=CC=CC(O)=C1 RLSSMJSEOOYNOY-UHFFFAOYSA-N 0.000 description 4
- QWVGKYWNOKOFNN-UHFFFAOYSA-N o-cresol Chemical compound CC1=CC=CC=C1O QWVGKYWNOKOFNN-UHFFFAOYSA-N 0.000 description 4
- IMNIMPAHZVJRPE-UHFFFAOYSA-N triethylenediamine Chemical compound C1CN2CCN1CC2 IMNIMPAHZVJRPE-UHFFFAOYSA-N 0.000 description 4
- ISPYQTSUDJAMAB-UHFFFAOYSA-N 2-chlorophenol Chemical compound OC1=CC=CC=C1Cl ISPYQTSUDJAMAB-UHFFFAOYSA-N 0.000 description 3
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 description 3
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 3
- GOOHAUXETOMSMM-UHFFFAOYSA-N Propylene oxide Chemical compound CC1CO1 GOOHAUXETOMSMM-UHFFFAOYSA-N 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 238000010494 dissociation reaction Methods 0.000 description 3
- 230000005593 dissociations Effects 0.000 description 3
- 238000010828 elution Methods 0.000 description 3
- 229920005862 polyol Polymers 0.000 description 3
- 150000003077 polyols Chemical class 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- KJCVRFUGPWSIIH-UHFFFAOYSA-N 1-naphthol Chemical compound C1=CC=C2C(O)=CC=CC2=C1 KJCVRFUGPWSIIH-UHFFFAOYSA-N 0.000 description 2
- UFBJCMHMOXMLKC-UHFFFAOYSA-N 2,4-dinitrophenol Chemical compound OC1=CC=C([N+]([O-])=O)C=C1[N+]([O-])=O UFBJCMHMOXMLKC-UHFFFAOYSA-N 0.000 description 2
- NXXYKOUNUYWIHA-UHFFFAOYSA-N 2,6-Dimethylphenol Chemical compound CC1=CC=CC(C)=C1O NXXYKOUNUYWIHA-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 2
- 239000005977 Ethylene Substances 0.000 description 2
- QIGBRXMKCJKVMJ-UHFFFAOYSA-N Hydroquinone Chemical compound OC1=CC=C(O)C=C1 QIGBRXMKCJKVMJ-UHFFFAOYSA-N 0.000 description 2
- UKLDJPRMSDWDSL-UHFFFAOYSA-L [dibutyl(dodecanoyloxy)stannyl] dodecanoate Chemical compound CCCCCCCCCCCC(=O)O[Sn](CCCC)(CCCC)OC(=O)CCCCCCCCCCC UKLDJPRMSDWDSL-UHFFFAOYSA-L 0.000 description 2
- 238000013459 approach Methods 0.000 description 2
- 239000012736 aqueous medium Substances 0.000 description 2
- 238000010923 batch production Methods 0.000 description 2
- YCIMNLLNPGFGHC-UHFFFAOYSA-N catechol Chemical compound OC1=CC=CC=C1O YCIMNLLNPGFGHC-UHFFFAOYSA-N 0.000 description 2
- -1 chloropheno:Ls Chemical compound 0.000 description 2
- 230000000875 corresponding effect Effects 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 150000002009 diols Chemical group 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- IWDCLRJOBJJRNH-UHFFFAOYSA-N p-cresol Chemical compound CC1=CC=C(O)C=C1 IWDCLRJOBJJRNH-UHFFFAOYSA-N 0.000 description 2
- 229920001228 polyisocyanate Polymers 0.000 description 2
- 239000005056 polyisocyanate Substances 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 230000008929 regeneration Effects 0.000 description 2
- 238000011069 regeneration method Methods 0.000 description 2
- GHMLBKRAJCXXBS-UHFFFAOYSA-N resorcinol Chemical compound OC1=CC=CC(O)=C1 GHMLBKRAJCXXBS-UHFFFAOYSA-N 0.000 description 2
- 239000002594 sorbent Substances 0.000 description 2
- YXFVVABEGXRONW-UHFFFAOYSA-N toluene Substances CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 2
- SMYMJHWAQXWPDB-UHFFFAOYSA-N (2,4,5-trichlorophenoxy)acetic acid Chemical compound OC(=O)COC1=CC(Cl)=C(Cl)C=C1Cl SMYMJHWAQXWPDB-UHFFFAOYSA-N 0.000 description 1
- WLNBMPZUVDTASE-HXIISURNSA-N (2r,3r,4s,5r)-2-amino-3,4,5,6-tetrahydroxyhexanal;sulfuric acid Chemical compound [O-]S([O-])(=O)=O.O=C[C@H]([NH3+])[C@@H](O)[C@H](O)[C@H](O)CO.O=C[C@H]([NH3+])[C@@H](O)[C@H](O)[C@H](O)CO WLNBMPZUVDTASE-HXIISURNSA-N 0.000 description 1
- WBYWAXJHAXSJNI-VOTSOKGWSA-M .beta-Phenylacrylic acid Natural products [O-]C(=O)\C=C\C1=CC=CC=C1 WBYWAXJHAXSJNI-VOTSOKGWSA-M 0.000 description 1
- 239000003559 2,4,5-trichlorophenoxyacetic acid Substances 0.000 description 1
- BPRYUXCVCCNUFE-UHFFFAOYSA-N 2,4,6-trimethylphenol Chemical compound CC1=CC(C)=C(O)C(C)=C1 BPRYUXCVCCNUFE-UHFFFAOYSA-N 0.000 description 1
- KUFFULVDNCHOFZ-UHFFFAOYSA-N 2,4-xylenol Chemical compound CC1=CC=C(O)C(C)=C1 KUFFULVDNCHOFZ-UHFFFAOYSA-N 0.000 description 1
- OVSKIKFHRZPJSS-DOMIDYPGSA-N 2-(2,4-dichlorophenoxy)acetic acid Chemical compound OC(=O)[14CH2]OC1=CC=C(Cl)C=C1Cl OVSKIKFHRZPJSS-DOMIDYPGSA-N 0.000 description 1
- HORNXRXVQWOLPJ-UHFFFAOYSA-N 3-chlorophenol Chemical compound OC1=CC=CC(Cl)=C1 HORNXRXVQWOLPJ-UHFFFAOYSA-N 0.000 description 1
- AFPHTEQTJZKQAQ-UHFFFAOYSA-N 3-nitrobenzoic acid Chemical compound OC(=O)C1=CC=CC([N+]([O-])=O)=C1 AFPHTEQTJZKQAQ-UHFFFAOYSA-N 0.000 description 1
- WXNZTHHGJRFXKQ-UHFFFAOYSA-N 4-chlorophenol Chemical compound OC1=CC=C(Cl)C=C1 WXNZTHHGJRFXKQ-UHFFFAOYSA-N 0.000 description 1
- MNVMYTVDDOXZLS-UHFFFAOYSA-N 4-methoxyguaiacol Natural products COC1=CC=C(O)C(OC)=C1 MNVMYTVDDOXZLS-UHFFFAOYSA-N 0.000 description 1
- BTJIUGUIPKRLHP-UHFFFAOYSA-N 4-nitrophenol Chemical compound OC1=CC=C([N+]([O-])=O)C=C1 BTJIUGUIPKRLHP-UHFFFAOYSA-N 0.000 description 1
- 239000005711 Benzoic acid Substances 0.000 description 1
- WBYWAXJHAXSJNI-SREVYHEPSA-N Cinnamic acid Chemical compound OC(=O)\C=C/C1=CC=CC=C1 WBYWAXJHAXSJNI-SREVYHEPSA-N 0.000 description 1
- FBPFZTCFMRRESA-FSIIMWSLSA-N D-Glucitol Natural products OC[C@H](O)[C@H](O)[C@@H](O)[C@H](O)CO FBPFZTCFMRRESA-FSIIMWSLSA-N 0.000 description 1
- SLIHWCBHCDZREL-UHFFFAOYSA-N N=C=O.N=C=O.N=C=O.C(C1=CC=CC=C1)C1=C(CC2=CC=CC=C2)C=CC=C1 Chemical compound N=C=O.N=C=O.N=C=O.C(C1=CC=CC=C1)C1=C(CC2=CC=CC=C2)C=CC=C1 SLIHWCBHCDZREL-UHFFFAOYSA-N 0.000 description 1
- 239000004721 Polyphenylene oxide Substances 0.000 description 1
- OFOBLEOULBTSOW-UHFFFAOYSA-N Propanedioic acid Natural products OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 1
- WNLRTRBMVRJNCN-UHFFFAOYSA-L adipate(2-) Chemical compound [O-]C(=O)CCCCC([O-])=O WNLRTRBMVRJNCN-UHFFFAOYSA-L 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 235000013405 beer Nutrition 0.000 description 1
- 235000010233 benzoic acid Nutrition 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 1
- 239000000920 calcium hydroxide Substances 0.000 description 1
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 125000002091 cationic group Chemical group 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 235000013985 cinnamic acid Nutrition 0.000 description 1
- 229930016911 cinnamic acid Natural products 0.000 description 1
- 239000012612 commercial material Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000011437 continuous method Methods 0.000 description 1
- LDHQCZJRKDOVOX-NSCUHMNNSA-N crotonic acid Chemical compound C\C=C\C(O)=O LDHQCZJRKDOVOX-NSCUHMNNSA-N 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000003795 desorption Methods 0.000 description 1
- 239000012975 dibutyltin dilaurate Substances 0.000 description 1
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical group OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 1
- 125000005442 diisocyanate group Chemical group 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 230000007717 exclusion Effects 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N ferric oxide Chemical compound O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 125000005639 glycero group Chemical group 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- GPRLSGONYQIRFK-UHFFFAOYSA-N hydron Chemical compound [H+] GPRLSGONYQIRFK-UHFFFAOYSA-N 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 235000015250 liver sausages Nutrition 0.000 description 1
- 150000002672 m-cresols Chemical class 0.000 description 1
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 description 1
- 239000011976 maleic acid Substances 0.000 description 1
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 description 1
- WBYWAXJHAXSJNI-UHFFFAOYSA-N methyl p-hydroxycinnamate Natural products OC(=O)C=CC1=CC=CC=C1 WBYWAXJHAXSJNI-UHFFFAOYSA-N 0.000 description 1
- 125000002950 monocyclic group Chemical group 0.000 description 1
- 125000004433 nitrogen atom Chemical group N* 0.000 description 1
- RBXVOQPAMPBADW-UHFFFAOYSA-N nitrous acid;phenol Chemical class ON=O.OC1=CC=CC=C1 RBXVOQPAMPBADW-UHFFFAOYSA-N 0.000 description 1
- 150000002883 o-cresols Chemical class 0.000 description 1
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 1
- 150000002931 p-cresols Chemical class 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- RBWSWDPRDBEWCR-RKJRWTFHSA-N sodium;(2r)-2-[(2r)-3,4-dihydroxy-5-oxo-2h-furan-2-yl]-2-hydroxyethanolate Chemical compound [Na+].[O-]C[C@@H](O)[C@H]1OC(=O)C(O)=C1O RBWSWDPRDBEWCR-RKJRWTFHSA-N 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000600 sorbitol Substances 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 229920001864 tannin Polymers 0.000 description 1
- 235000018553 tannin Nutrition 0.000 description 1
- 239000001648 tannin Substances 0.000 description 1
- DVKJHBMWWAPEIU-UHFFFAOYSA-N toluene 2,4-diisocyanate Chemical compound CC1=CC=C(N=C=O)C=C1N=C=O DVKJHBMWWAPEIU-UHFFFAOYSA-N 0.000 description 1
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 1
- LDHQCZJRKDOVOX-UHFFFAOYSA-N trans-crotonic acid Natural products CC=CC(O)=O LDHQCZJRKDOVOX-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/42—Separation; Purification; Stabilisation; Use of additives
- C07C51/47—Separation; Purification; Stabilisation; Use of additives by solid-liquid treatment; by chemisorption
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D15/00—Separating processes involving the treatment of liquids with solid sorbents; Apparatus therefor
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/285—Treatment of water, waste water, or sewage by sorption using synthetic organic sorbents
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C37/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring
- C07C37/68—Purification; separation; Use of additives, e.g. for stabilisation
- C07C37/70—Purification; separation; Use of additives, e.g. for stabilisation by physical treatment
- C07C37/82—Purification; separation; Use of additives, e.g. for stabilisation by physical treatment by solid-liquid treatment; by chemisorption
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Hydrology & Water Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Water Supply & Treatment (AREA)
- Analytical Chemistry (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Polyurethanes Or Polyureas (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Treatment Of Liquids With Adsorbents In General (AREA)
- Water Treatment By Sorption (AREA)
Priority Applications (8)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA231,051A CA1075166A (en) | 1975-07-08 | 1975-07-08 | Sorption of weak organic acids from water by polyurethane |
| US05/613,846 US4061565A (en) | 1975-07-08 | 1975-09-16 | Sorption of weak organic acids from water by polyurethane |
| DE19762628483 DE2628483A1 (de) | 1975-07-08 | 1976-06-25 | Sorption von schwachen organischen saeuren aus wasser durch polyurethan |
| NL7607092A NL7607092A (nl) | 1975-07-08 | 1976-06-29 | Werkwijze voor het extraheren van zwakke organische zuren uit waterige oplossingen. |
| FR7620387A FR2316992A1 (fr) | 1975-07-08 | 1976-07-02 | Sorption d'acides organiques faibles a partir d'eau par du polyurethane |
| GB27813/76A GB1543434A (en) | 1975-07-08 | 1976-07-05 | Sorption of weak organic acids from water |
| CH871576A CH611526A5 (enrdf_load_html_response) | 1975-07-08 | 1976-07-07 | |
| JP51080815A JPS529975A (en) | 1975-07-08 | 1976-07-07 | Method of extracting weak monomerrlike organic matter from water solution |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA231,051A CA1075166A (en) | 1975-07-08 | 1975-07-08 | Sorption of weak organic acids from water by polyurethane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1075166A true CA1075166A (en) | 1980-04-08 |
Family
ID=4103569
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA231,051A Expired CA1075166A (en) | 1975-07-08 | 1975-07-08 | Sorption of weak organic acids from water by polyurethane |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US4061565A (enrdf_load_html_response) |
| JP (1) | JPS529975A (enrdf_load_html_response) |
| CA (1) | CA1075166A (enrdf_load_html_response) |
| CH (1) | CH611526A5 (enrdf_load_html_response) |
| DE (1) | DE2628483A1 (enrdf_load_html_response) |
| FR (1) | FR2316992A1 (enrdf_load_html_response) |
| GB (1) | GB1543434A (enrdf_load_html_response) |
| NL (1) | NL7607092A (enrdf_load_html_response) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5331713B2 (enrdf_load_html_response) * | 1974-06-05 | 1978-09-04 | ||
| JPS50156365A (enrdf_load_html_response) * | 1974-06-05 | 1975-12-17 | ||
| US4284943A (en) * | 1979-02-13 | 1981-08-18 | Electric Machinery Mfg. Company | Apparatus and method for controlling the speed of an induction motor in a closed-loop system |
| DE4038155A1 (de) * | 1990-11-30 | 1992-06-04 | Werner Gustav Althoefer | Filter- und aufsaugmaterial fuer oelige und farbhaltige fluessigkeiten und gase |
| US5403750A (en) * | 1991-03-06 | 1995-04-04 | W. R. Grace & Co.-Conn. | Biocompatible, low protein adsorption affinity matrix |
| DE4110736A1 (de) * | 1991-04-03 | 1992-10-08 | Rotta Innovations Gmbh Dr | Polymerpartikel zur wasseraufbereitung |
| FR2678380B1 (fr) * | 1991-06-28 | 1993-10-08 | Sebia | Dispositif permettant l'etalement d'un ou plusieurs reactifs sur un gel. |
| EP0978303A1 (en) * | 1995-10-10 | 2000-02-09 | Reilly Industries, Inc. | Dewatering processes for recovering acid products |
| US20040139531A1 (en) * | 2002-12-06 | 2004-07-22 | Moore Dan T. | Custom fitted helmet and method of making the same |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3597351A (en) * | 1968-09-27 | 1971-08-03 | Monsanto Co | Purification of aqueous media by removal of phenolic and metal contaminants therefrom |
| US3812031A (en) * | 1970-07-29 | 1974-05-21 | Texaco Inc | Selective adsorption of phenols from solution in water |
| US3617531A (en) * | 1970-07-29 | 1971-11-02 | Texaco Inc | Selective adsorption of phenols from solution in hydrocarbons |
| US3883465A (en) * | 1973-05-07 | 1975-05-13 | Dow Chemical Co | Rapid setting polyurethanes from diols and polyfunctional polyisocyanates prepared in the presence of carboxylic acid esters |
| GB1448933A (en) * | 1974-02-14 | 1976-09-08 | Shell Int Research | Process for preparing polyurethane products |
-
1975
- 1975-07-08 CA CA231,051A patent/CA1075166A/en not_active Expired
- 1975-09-16 US US05/613,846 patent/US4061565A/en not_active Expired - Lifetime
-
1976
- 1976-06-25 DE DE19762628483 patent/DE2628483A1/de not_active Withdrawn
- 1976-06-29 NL NL7607092A patent/NL7607092A/xx not_active Application Discontinuation
- 1976-07-02 FR FR7620387A patent/FR2316992A1/fr active Granted
- 1976-07-05 GB GB27813/76A patent/GB1543434A/en not_active Expired
- 1976-07-07 CH CH871576A patent/CH611526A5/xx not_active IP Right Cessation
- 1976-07-07 JP JP51080815A patent/JPS529975A/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| FR2316992A1 (fr) | 1977-02-04 |
| GB1543434A (en) | 1979-04-04 |
| DE2628483A1 (de) | 1977-01-20 |
| NL7607092A (nl) | 1977-01-11 |
| JPS529975A (en) | 1977-01-25 |
| FR2316992B1 (enrdf_load_html_response) | 1983-01-28 |
| US4061565A (en) | 1977-12-06 |
| CH611526A5 (enrdf_load_html_response) | 1979-06-15 |
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